Maths- Small General Things to Remember

How to find this? 4^?= 16384

-You keep dividing by four

4= 4×4096

4=4×4x1024

4=4×4×4x256

4=4×4×4×4x64

4=4×4×4×4×4x16

4=4×4×4×4×4×4×4

4^7= 163384

How to rationalize??

3/√5 = 3/√5 x √5 /√5 = 3√5 / 5

(a-b) (a+b) =

a²- b²

a^2/3

-216^2/3

³√a²

³√-216) ²

6 factorial

6×45×4×3×2×1= 720

A square has the length of 54cm. If it’s perimeter is increased by 35%, what is the new perimeter?

A square has the length of 54cm. If it’s perimeter is increased by 35%, what is the new length?

54×4= 216(perimeter)

100%+35/100 × 216= 291.6 cm (increase)

291.6 (new perimeter)/4= 72.9 m

interqualli range

Q 3 - Q 1

Q2= median of set

Q1= median of first half of set

Q3= median of second half of set

open circle in a graph

closed circle in a graph

open circle- means that it is excluded >

closed circle- means that it is included ≥

1 ha= how much m

1ha= 10,000 m²